/Engine/Plugins/Online/OnlineFramework/Source/Party/Public/SocialToolkit.h
virtual void OnReadFriendsListComplete ( int32 LocalUserNum, bool bWasSuccessful, const [FString](API\Runtime\Core\Containers\FString) & ListName, const [FString](API\Runtime\Core\Containers\FString) & ErrorStr, [ESocialSubsystem](API\Plugins\Party\ESocialSubsystem) SubsystemType )